| 定性系统单元分解仿真算法研究 |
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| 引用本文： | 杨善林,梁昌勇.定性系统单元分解仿真算法研究[J].合肥工业大学学报(自然科学版),2000,23(1):21-27. |
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| 作者姓名： | 杨善林 梁昌勇 |
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| 作者单位： | 合肥工业大学,管理学院,安徽,合肥,230009 |
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| 摘 要： | 标准的QSIM算法,由于基于全局状态表示来描述、推理系统的行为,对于复杂系统推理求解时会产生不可控分枝问题.文章提出一种系统分解的仿真算法,将定性模型分解成称之为"单元"的子模型.对单元分别应用QSIM推理,对单元间的关系通过约束传播使得子模型推理一致.这种系统分解仿真算法可大大降低QSIM算法的不可控分枝,提高系统的仿真效率.
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| 关 键 词： | QSIM算法 模型分解 定性推理 |
| 修稿时间： | 1999-09-24 |
The study of system decomposing simulation algorithm based on QSIM |
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| YANG Shan-lin,LIANG Chang-yong.The study of system decomposing simulation algorithm based on QSIM[J].Journal of Hefei University of Technology(Natural Science),2000,23(1):21-27. |
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| Authors: | YANG Shan-lin LIANG Chang-yong |
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| Abstract: | When
the system is complex,and the standard QSIM algorithm is applied,intractable branching
problems may occur, because the QSIM algorithm describes and handles system behaviors
based on the global states. This paper proposes a system decomposing simulation algorithm.
This algorithm divides the qualitative model into some sub-models called components,
separately simulate the components with QSIM, and keeps the components consistent through
constraint propagation. The algorithm may greatly decrease the intractable branches and
improve the simulation efficiency. |
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| Keywords: | QSIM algorithm model decomposing qualitative reasoning |
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